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  Date: 2024/6/13
  Time: 10:50
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>JSP的使用</title>
</head>
<body>
    <!-- 发起请求的方式一：通过超链接 -->
    <h1><a href="change.do?letters=aabbcc">转换大写</a></h1>

    <!-- 发起请求的方式二：通过表单提交 -->
    <form action="change.do" method="post">
        输入小写字母：<input type="text" name="letters">
        <input type="submit" value="提交">
    </form>
</body>
</html>
